Why is my baby waking up every 2 hours?

Written By Lisa Bond

If you’re reading this at 3 am wondering “Why is my baby waking up every 2 hours?” You’re not alone. Frequent night waking is one of the most common concerns for parents, especially in the first year.

Here’s what might be going on and what you can do about it.

1. It’s Developmentally Normal (Especially in the First 6 Months)

Newborns have tiny stomachs and short sleep cycles. Most babies under 4-6 months naturally wake every 2-3 hours to feed. Their circadian rhythm (day/night awareness) is still developing.

What helps:

  • Keep nighttime interactions calm and quiet

  • Feed fully during the day to encourage longer night stretches

  • Expose baby to natural light in the morning

 2. Sleep Cycles Are Short

Babies’ sleep cycles last about 40-50 minutes (compared to 90 minutes for adults). At the end of each cycle, they briefly wake. If they rely on being rocked, fed, or held to fall asleep, they may need that same help every time they transition between cycles.

What helps:

  • Practice putting baby down drowsy but awake

  • Gradually reduce sleep associations

  • Pause briefly before responding, sometimes they resettle

 3. Hunger (Especially During Growth Spurts)

Growth spurts common around 2–3 weeks, 6 weeks, 3 months, and 6 months can increase hunger and night feeds temporarily.

What helps:

  • Offer more frequent daytime feeds

  • Consider a “dream feed” before you go to bed

 4. Sleep Regression

Around 4 months, babies experience a major sleep shift. Their sleep becomes more like an adult’s lighter and more cyclical. This often leads to sudden frequent waking.

Other common regression periods: 8-10 months (mobility + separation anxiety) and 12 months.

What helps:

  • Stick to a consistent bedtime routine

  • Focus on daytime naps

  • Stay consistent with how you respond at night

 5. Teething, Illness, or Discomfort

Teething pain, reflux, gas, room temperature, or even a wet diaper can disrupt sleep.

What helps:

  • Check for signs of illness

  • Keep room temperature comfortable (68-72°F / 20-22°C)

  • Use white noise if helpful

 6. Overtiredness

Ironically, babies who don’t nap enough can wake more at night. Overtired babies release stress hormones that make staying asleep harder.

What helps:

  • Follow age-appropriate wake windows

  • Avoid pushing bedtime too late

Lisa Bond
Next

Let me introduce myself